But it may not be as bad for your health as you think, new research suggests.

For scientists have found the gene that causes people to crave sugary treats also lowers body fat.

The researchers, based at Exeter University, today revealed they were 'surprised' over their unexpected discovery.

They claimed the findings, derived from nearly half a million people, go against the perception that eating sugar is bad for health.

For scientists have found the gene that causes people to crave sugary treats also lowers body fat. The researchers, based at Exeter University, today revealed they were 'surprised' over their unexpected discovery

Scientists have known since 2013 that a version of the gene FGF21 makes people consume more carbohydrates.

But this was often assumed to trigger people to pile on weight as they consumed more calories than their counterparts without the gene.

Professor Timothy Frayling, who led the study, said: 'We were surprised the version of the gene associated with eating more sugar is associated with lower body fat.

'This goes against the current perception that eating sugar is bad for health. It may reduce body fat.'